AI CODING MODEL DECISION ENGINE

Compare Coding Models by Workflow Cost

Quantifying the intersection of benchmark evidence, token pricing, and agentic reliability. Move beyond "vibes" to deterministic task economics.

DECISION STACK
SOURCE: [API] FRESHNESS: 2026-05-28
STEP 01 Evidence: SWE-bench Verified
STEP 02 Token Price: source-backed where available
STEP 03 Task Cost: Open Calculator With Assumptions
STEP 04 Caveat: Context Threshold Warning

No single coding model wins every workflow. Choose by workflow, evidence, pricing, context, caveat, and task cost.

WORKFLOW

I’m building a coding agent

SWE-BENCH: 76.8% CONFIDENCE: medium

Caveat: Strong evidence, but expensive output pricing; not universal best.

WORKFLOW

Cheapest good-enough

UNIT: $0.14/1M CONFIDENCE: medium

Caveat: Low token price only helps if retry rate stays low.

WORKFLOW

Frontend generation

EVIDENCE: partial CONFIDENCE: low

Caveat: Benchmark signal exists; price/context need exact source verification.

WORKFLOW

Repo-level refactor

CONTEXT: 1M+ CONFIDENCE: medium

Caveat: Long-context candidates require source-backed context and reliability caveats.

Model Provider Benchmark evidence Input $/1M Output $/1M Cache Context Speed Best for Data status Caveat Source CTA
Claude Opus 4.5 Anthropic SWE: 76.80% $5.00 $25.00 Supported Not Disclosed not disclosed Reasoning partial Strong evidence; expensive output price DOCS Calculate Task Cost
Claude Sonnet 4.5 Anthropic SWE: 71.40% $3.00 $15.00 Supported Not disclosed not disclosed Balanced partial Good candidate; not universal winner API Calculate Task Cost
Gemini 3 Flash Google SWE: 75.80% Not Disclosed Not Disclosed Native Not disclosed not disclosed Repo Analysis partial Price/context not verified BLOG Calculate Task Cost
Kimi K2.5 Moonshot SWE: 70.80% Not Disclosed Not Disclosed N/A Not disclosed not disclosed CN Workflow partial Pricing not disclosed DOCS Calculate Task Cost
Claude Haiku 4.5 Anthropic SWE: 66.60% $1.00 $5.00 Supported Not disclosed not disclosed Small Fixes partial Cheap tokens can lose via retries API Calculate Task Cost
DeepSeek V4 Flash DeepSeek Not Publicly Benchmarked $0.14 $0.28 Cached 1,000,000 not disclosed Efficiency partial Exact coding benchmark not verified API Calculate Task Cost

Methodology

01 / INTEGRITY

No fake universal score

We reject "overall" model scores. A model good at frontend UI generation may fail at complex repo refactoring. Keep benchmark sources separate and use workflow labels only.

02 / ECONOMICS

Token price ≠ task cost

Low token prices can lose their advantage if retries, output length, or failure cleanup increase. The calculator estimates from visible assumptions, not from hidden defaults.

03 / CURATION

Source freshness

Data must come from official provider pages or public benchmark sources. Each visible row needs source URL, last checked date, confidence, and caveat.

04 / TRANSPARENCY

Unknown value policy

If a provider hides pricing or context limits, we label it "Not Disclosed" rather than estimating. This forces visibility on opaque commercial practices.

Ready to calculate real task cost?

Select a model and define your project scope to get a high-fidelity economic estimate including token usage and iteration safety margins.

MODEL PREVIEW Claude Opus 4.5
warning NOTICE: ESTIMATE ONLY. NOT A BINDING BILLING QUOTE. PROVIDER RATES SUBJECT TO CHANGE WITHOUT NOTICE.